Finding the Fourth Proportional to 12,233.10, 18,356.57 and 5,212.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,233.10 : 18,356.57 = 5,212.37 : x
2. Step 2: Convert to fraction form
   12,233.10/18,356.57 = 5,212.37/x
3. Step 3: Cross multiply
   12,233.10x = 18,356.57 × 5,212.37
4. Step 4: Simplify right side
   12,233.10x = 95,681,303.47
5. Step 5: Solve for x
   x = 95,681,303.47/12,233.10
6. Step 6: Final answer
   x = 7,821.51